Homework Help: Trigonometry

Posted by :) on Monday, March 5, 2012 at 1:08pm.

an airplane over the pacific sights an atoll at a 11 degrees angel angle of depression. if the plane is 410 m above water how many kilometers is it from a point 410 m above the atoll

Trigonometry - Henry, Tuesday, March 6, 2012 at 8:12pm
tan11 = Y/X = 410/X.
X = 410 / tan11 = 2109.3 km.

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